Mont. Code Ann. § 39-31-505

Subject to Title 27, chapter 5, part 3, the decision of the arbitrator is final and is binding on the parties, and the board of personnel appeals shall issue an order containing the decision. Refusal or failure to comply with any provision of a final and binding arbitration award is an unfair labor practice. An order issued by the board of personnel appeals pursuant to this section may be enforced by either party or the board of personnel appeals in the district court for any county in which the dispute arose.